$(function(){
    let tempIndex = 0;
    $(".bannerlist>ul").on("mouseenter","li",function(){
        $(".bannerlist .listcon").show();
        tempIndex = $(this).index();
        $(".bannerlist>ul>li>div>div").eq(tempIndex).show().siblings().hide();
    }) 
    $(".bannerlist>ul").on("mouseleave","li",function(){
        $(".bannerlist .listcon").hide();
    }) 
})